Question

{8y-7x=-5,6 35x+2y=7

Answer 1

$40y - 35x = - 28 \: \\ 35x + 2y = 7 \\ 42y = - 21 \\ y = - 0.5 \\ - 4 - 7x = - 5.6 \\ 7x = 1.6 \\ x = \frac{1.6}{7}$